Battlefield 4 Servers Upgraded to Address Lag

The Battlefield Blog has word on DICE's
promised
efforts at addressing rubber-banding and other latency-related issues in
Battlefield 4 that followed the launch of the Naval Strike DLC for the
military shooter sequel. Word is they have rolled out some new
hardware:

As you know, we’ve been looking into resolving the “rubber
banding” that some players on certain platforms have experienced with
Battlefield 4 after the recent release of Naval Strike. We’ve found that the
root cause of the issue was a configuration of certain hardware types dedicated
to 64-player matches.

We have invested in new hardware to resolve this issue and deployed new
higher-performance servers this week. In preparation, we conducted a significant
amount of testing before installing the new servers to ensure they would correct
the issue. We are already seeing performance improvement with 64-player matches
and expect this to continue.

While the process took longer than we would’ve liked, we wanted to be 100% sure
it was done right and that the long-term solution was properly in place.

Our objective is to deliver the best player experience possible. We feel this
solution helps us deliver that to you. Stay tuned to our official channels for
more information.